By using the Original 717M (2576B002AA) Magenta Toner Cartridge you can achieve the best possible prints that your Printer can produce. The Genuine 2576B002AA will produce stunning results for the life of the Cartridge due to this 717M Magenta Toner Cartridge being a brand new product, designed and manufactured by Canon. The Original Magenta 717M (2576B002AA) Canon Toner Cartridge is guaranteed to work in harmony with the Canon i-SENSYS MF8450 Printer and holds enough high quality Toner powder to produce up to 4000 pages (based on a 5% coverage) making this product a must for the home or small office environment.